A206836 Number of nX6 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal

3636, 13220496, 32326073197, 81562078260316, 202239575474145573, 503617001775793994676, 1253153235463965319380998, 3119258907440765674089992703, 7763820132416499980446666540204

Offset

1,1

Comments

Column 6 of A206838

Links

R. H. Hardin, Table of n, a(n) for n = 1..14

Example

Some solutions for n=5
..1..3..3..3..2..0....0..3..2..0..2..3....2..3..1..1..0..0....1..2..1..0..1..3
..3..2..2..3..1..1....2..2..2..2..1..0....2..2..1..3..2..0....3..2..1..0..1..3
..2..2..0..1..1..3....3..3..3..1..3..3....0..0..1..3..2..1....2..1..2..0..1..0
..3..1..1..3..2..1....2..0..2..0..2..1....1..1..0..1..1..0....2..1..2..0..3..0
..1..1..0..2..2..0....3..0..2..1..1..0....3..3..3..2..2..2....0..0..1..0..3..2

Crossrefs

Sequence in context: A232120 A232418 A206844 * A206898 A207288 A239992

Adjacent sequences: A206833 A206834 A206835 * A206837 A206838 A206839

Keyword

nonn

Author

R. H. Hardin Feb 13 2012

Status

approved